This surely would be interesting since they couldn't be any further from each other when it comes to their personalities. Let's take for example the train scene and replace Rei with Kyouko. How do you think they'd get along with each other? Would Kyouko just act as ignorantly as towards most people and leave him in the train or would she actually feel flustered and start all blushing around, etc.
I'd be rlly interested in your opinions~!